What method of reproduction do bacteria use?
a. Mitosis
b. Binary fission
c. Sexual reproduction
d. Cytokinesis
b
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Helicobacter pylori is a bacterial organism that causes ulcers and digestive disturbances. How might they survive the acid pH of the stomach?
A) They secrete buffers to neutralize acid. B) They burrow under the mucus layer that covers the stomach epithelium. C) They take over the parietal cells. D) They release chemicals that decrease acid production in the stomach.
Which of the following statements is correct in comparing metagenomic (next generation) sequencing to whole-genome (shotgun) sequencing?
A. Both sequencing methods have equal depth and coverage from the polymerase "reads" on the template. B. Whole-genome sequencing does not fragment genomic sequences, but rather utilizes adaptor molecules on the template DNA. C. Both sequencing methods utilize overlapping sequence contigs to assemble the full sequence. D. Metagenomic sequencing uses a bacterial artificial chromosome (BAC) genomic library as the template.
Which pair of words is incorrectly matched?
a. tail end ? posterior b. mesoderm ? muscles c. coelom ? n? body cavity d. deuterostomes ? radial cleavage e. triploblastic ? bilateral organism
Allergy shots require many injections over long periods of time to be effective. Why can't the body get over an allergy with just a couple of injections?
What will be an ideal response?